The wsconscfg problem with multiple screens, whatever it exactly is, is decidedly odd. According to this, the display is being driven as smfb0 in what is largely a dumb framebuffer mode, no acceleration, no GPU, no fancy high jinks whatsoever. wscons/wsdisplay should have no difficulty with multiple screens on that sort of thing.
It’s tough to find them on eBay; I wonder what the right search terms are?
No computer is obsolete with a BSD. I still use an n270 netbook daily.
I still think it is very cursed to see that image of RMS using that laptop despite I was shocked to see it 12 years ago. Still shocks me to this day.
The NetSurf browser the author tried out has multiple frontends. Two run on OpenBSD that I know of, the “default” GTK frontend and an SDL‐based framebuffer frontend. As was pointed out, GTK has a rather sizeable number of dependencies; building the framebuffer frontend instead would save a lot of time.